What are the strongest materials used during the period of the Ancient History?When I say the the STRONGEST MATERIAL I meant by rocks and stones but those are not the answer...So Please Help meee...PLEASEEEE

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What are the strongest materials used during the period of the Ancient History?When I say the the STRONGEST MATERIAL I meant by rocks and stones but those are not the answer...So Please Help meee...PLEASEEEE

What are the strongest materials used during the period of the Ancient History?When I say the the STRONGEST MATERIAL I meant by rocks and stones but those are not the answer...So Please Help meee...PLEASEEEE
What are the strongest materials used during the period of the Ancient History?
When I say the the STRONGEST MATERIAL I meant by rocks and stones but those are not the answer...So Please Help meee...PLEASEEEE

What are the strongest materials used during the period of the Ancient History?When I say the the STRONGEST MATERIAL I meant by rocks and stones but those are not the answer...So Please Help meee...PLEASEEEE
bronze ware青铜